[INFO] cloning repository https://github.com/autodidaddict/rs-zombies
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/autodidaddict/rs-zombies" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautodidaddict%2Frs-zombies", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautodidaddict%2Frs-zombies'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a0b4e82ae7da59541801cb2ffc4ff447c2cf0af
[INFO] checking autodidaddict/rs-zombies against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautodidaddict%2Frs-zombies" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/autodidaddict/rs-zombies on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/autodidaddict/rs-zombies
[INFO] finished tweaking git repo https://github.com/autodidaddict/rs-zombies
[INFO] tweaked toml for git repo https://github.com/autodidaddict/rs-zombies written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/autodidaddict/rs-zombies already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-io v0.1.2
[INFO] [stderr]   Downloaded net2 v0.2.29
[INFO] [stderr]   Downloaded tokio-core v0.1.8
[INFO] [stderr]   Downloaded futures-cpupool v0.1.5
[INFO] [stderr]   Downloaded mio v0.6.9
[INFO] [stderr]   Downloaded bytes v0.4.4
[INFO] [stderr]   Downloaded tls-api v0.1.8
[INFO] [stderr]   Downloaded protobuf v1.4.1
[INFO] [stderr]   Downloaded grpc-compiler v0.2.1
[INFO] [stderr]   Downloaded protoc v1.4.1
[INFO] [stderr]   Downloaded libc v0.2.24
[INFO] [stderr]   Downloaded futures v0.1.14
[INFO] [stderr]   Downloaded tokio-tls-api v0.1.8
[INFO] [stderr]   Downloaded protoc-rust v1.4.1
[INFO] [stderr]   Downloaded grpc v0.2.1
[INFO] [stderr]   Downloaded protoc-rust-grpc v0.2.1
[INFO] [stderr]   Downloaded httpbis v0.4.1
[INFO] [stderr]   Downloaded cfg-if v0.1.1
[INFO] [stderr]   Downloaded tls-api-stub v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a0392a9d21dd706e5a94f796529df87879135c1e7c707a4a86a444670a7fdc4e
[INFO] running `Command { std: "docker" "start" "-a" "a0392a9d21dd706e5a94f796529df87879135c1e7c707a4a86a444670a7fdc4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0392a9d21dd706e5a94f796529df87879135c1e7c707a4a86a444670a7fdc4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0392a9d21dd706e5a94f796529df87879135c1e7c707a4a86a444670a7fdc4e", kill_on_drop: false }`
[INFO] [stdout] a0392a9d21dd706e5a94f796529df87879135c1e7c707a4a86a444670a7fdc4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fdd22c2b856f981e37e0fbb1264e3c4e3068b488f596045b2e60af02d9897b01
[INFO] running `Command { std: "docker" "start" "-a" "fdd22c2b856f981e37e0fbb1264e3c4e3068b488f596045b2e60af02d9897b01", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.24
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.1
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]    Compiling protoc v1.4.1
[INFO] [stderr]     Checking tls-api v0.1.8
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking tls-api-stub v0.1.8
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]    Compiling bytes v0.4.4
[INFO] [stderr]     Checking mio v0.6.9
[INFO] [stderr]     Checking protobuf v1.4.1
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]     Checking tokio-io v0.1.2
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking futures-cpupool v0.1.5
[INFO] [stderr]     Checking tokio-core v0.1.8
[INFO] [stderr]     Checking tokio-tls-api v0.1.8
[INFO] [stderr]     Checking httpbis v0.4.1
[INFO] [stderr]     Checking grpc v0.2.1
[INFO] [stderr]    Compiling protoc-rust v1.4.1
[INFO] [stderr]    Compiling grpc-compiler v0.2.1
[INFO] [stderr]    Compiling protoc-rust-grpc v0.2.1
[INFO] [stderr]    Compiling rs-zombies v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `rs-zombies v0.2.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rs-zombies-9a057e5c4924ce2d/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'protoc-rust-grpc: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:9:8
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5567e8ce7ba0 - std::backtrace_rs::backtrace::libunwind::trace::hec7eaac9435d3512
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5567e8ce7ba0 - std::backtrace_rs::backtrace::trace_unsynchronized::h42791b8fa12b7daa
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5567e8ce7ba0 - std::sys_common::backtrace::_print_fmt::h3da3ebe04fb665a8
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5567e8ce7ba0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he40bcdde3c4491cd
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5567e8d0b97f - core::fmt::write::h2c729149c08098ab
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x5567e8ce56b5 - std::io::Write::write_fmt::h28e0f2f58b8d7b7e
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/io/mod.rs:1578:15
[INFO] [stderr]      6:     0x5567e8ce9b1b - std::sys_common::backtrace::_print::h7f0223b1e3d898fc
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5567e8ce9b1b - std::sys_common::backtrace::print::h58edd634a14c2d4c
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5567e8ce9b1b - std::panicking::default_hook::{{closure}}::h71657a7591430164
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5567e8ce95fd - std::panicking::default_hook::hcdf4eb5db072c85b
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5567e8cea0cd - std::panicking::rust_panic_with_hook::hfb91e961ffb5b8e0
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x5567e8ce9cc7 - std::panicking::begin_panic_handler::{{closure}}::h984d540e84311150
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x5567e8ce803c - std::sys_common::backtrace::__rust_end_short_backtrace::h32354258ff2aecd1
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5567e8ce9c29 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x5567e8a94101 - core::panicking::panic_fmt::he3827412471ccbb1
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x5567e8a941f3 - core::result::unwrap_failed::h6e66654d198da7bd
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x5567e8a94a20 - core::result::Result<T,E>::expect::he8ee06d9f78da763
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x5567e8a94b34 - build_script_build::main::hc53a0f86f7a81dbc
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:4:5
[INFO] [stderr]     18:     0x5567e8a9494b - core::ops::function::FnOnce::call_once::h1f860ceb42e16212
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x5567e8a94bee - std::sys_common::backtrace::__rust_begin_short_backtrace::hce39f207be643fef
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x5567e8a94bb1 - std::rt::lang_start::{{closure}}::he0d03f7248cae3e3
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x5567e8cea4ca - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd5953dadf0bc8f54
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5567e8cea4ca - std::panicking::try::do_call::h23b369f1996fb7d4
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:379:40
[INFO] [stderr]     23:     0x5567e8cea4ca - std::panicking::try::he017ee9ed6bce192
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:343:19
[INFO] [stderr]     24:     0x5567e8cea4ca - std::panic::catch_unwind::hbfb892340a78b30d
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panic.rs:431:14
[INFO] [stderr]     25:     0x5567e8cea4ca - std::rt::lang_start_internal::hce6e4c0ce56abb51
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x5567e8a94b90 - std::rt::lang_start::hd5e69e6225e90c2d
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x5567e8a94b5c - main
[INFO] [stderr]     28:     0x7f2e98a8d0b3 - __libc_start_main
[INFO] [stderr]     29:     0x5567e8a9485e - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "fdd22c2b856f981e37e0fbb1264e3c4e3068b488f596045b2e60af02d9897b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd22c2b856f981e37e0fbb1264e3c4e3068b488f596045b2e60af02d9897b01", kill_on_drop: false }`
[INFO] [stdout] fdd22c2b856f981e37e0fbb1264e3c4e3068b488f596045b2e60af02d9897b01